Seiko Cal. 7139 - 611

Seiko 7139-611

The 7139-611 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7139 caliber with 36j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-01dccf65bae8]

Also known as: Helmet, Rally

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
43mm
Case Thickness
12.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Black
Jewels
36j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1994

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